Hinge mechanism for breakdown guns.



No. 674,085; Patented May r4,- l90l.

A. HANSON. I HINGE ECHRNISH FOB BREAKDOWN GUNS.

(Application med Dec. 31 i960.)

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NITED STATES ATENT Fries,

ANDREW HANSON, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO HAR- RINGTON &RICHARDSON ARMS 00., F SAME PLACE.

HINGEMECHANISM FOR BREAKDOWN GUNS.

SPECIFICATION formingpart of Letters Patent No. 674,08 6, dated May 14,190.1. Application filed December 81, 1900. Serial No. 41,561. (Nomodel.)

To all whom it may CO wo duced non-threaded portion, as indicated, forBe it known thatI, ANDREW HANSON, acitireceiving the end of thehinge-pin. zen of the United States, residing at Worces- The head end ofthe hinge-pin is provided ter, in the county of-iVorcester and State ofwith a movable handle or manipulating ap- Massachusetts, have invented anew and usepliance, preferably consisting of a swinging 55 fulImprovement in Hinge Mechanism for bar or member F, having its notchedhead Breakdown Guns, of which the following, to: pivoted atf withina'slot formed transversely gether with the accompanying drawings, is aacross the end of the hinge-pin; A spring.

specification sufficiently full,clear, and exact pressed stud isprovided at S disposed in a to enable persons skilled in the art towhich hole in the pin 0 to press against the notched 60 this inventionappertains to make and use the head for retaining the member I at-uormalsame. position of interlocked adjustment.

The object of my present invention is to The frameAis provided with along recess provide an eficient and desirable interlock- 5 for receptionof the member F, formed raing hinge-pin that can be quickly and condialto the aXis of the hinge-pin and sunk iu- 65 veniently inserted andremoved for separatward from the outside face of the check a and ing thestock and barrel of the gun and which uniting with the pin-hole BI Fromthe inner will be securely and positively retained in part of saidrecess or within the check a I place within the frame. This object Iattain have formed a shoulder orgroove 7, partially by the mechanismillustrated in the accoincircumferential in relation to the pin-hole B70 panying drawings, whereinand practically perpendicular to thehinging- Figure 1 represents a side view of a poraxis and of adimensionsuitable for receiving tion of a breakdown gun embodying my inthe studor detent 3, which engages etherevention. Fig.2isahorizontal sectionthrough with, and thus affords an interior interlock the frame at thehinge-pin seat. Fig. 3 is a for securing the hinge-pin against endwise75 transverse section at the position of the indisplacement.

- terlock recess or groove. Fig. 4 is an under The swinging memberFcanbe turned down side view of the hinge-pin with its lockinginto theradial recess 5, and therein it forms detents'. Fig. 5isa centrallongitudinal secan exterior interlocking device that when tion of thehinge-pins, and Fig. 6 shows the closed down prevents rotative movementof 80 side form of the 'catch devices and a modified the hinge-pin O andwhen raised or 'disenhinge-pin end. gaged from its interlocked positionserves as Referring to the drawings, A denotes the a handle tofacilitate the manipulation or forward portion of the frame, having thebimovement of said hinge-pin for unlocking the furcation orhinging-cheeks Ct a, which are stud 3 from the groove 7, which is accom-85 transversely bored with holes B Z) for the replished byswinging thearm F to the position ception of the joint-bolt or hinging-pin 0, shownby dotted lines Fand then rotatively whereby the barrel D is hinged tosaid frame to the position indicated by dotted lines in for the tiltingor breakdown action. on Fig. 1, when the hinge-pin can be pulled 40 Inaccordance with my present invention out endwise. 90 the hinge-pin ismade with a plain cylin- When assembling the hinge-pin C in the dricalbody 1 and areduced non-threaded end .frame A, its body is passed intothe hole B 2, that respectively fit the holes B b in the with theprojecting stud 3 in line with the recheeks Ct a, and said hinge-pin isprovided cess 5. YVhen the hinge-pin is home, the stud 5 with aprojecting stud, pin, or deteut 3, that is within the cheek a and inconjunction with 5 is rigidly fixedin and protrudes laterally from thegroove 7. The pin is then rotated a parthe cylindrical bodyata positioncorrespondtial turn, interlocking the detent 3 within ing with theinterior of the cheek a. The' said groove 7 in a manner to resistendwise hole bin the cheek a is formed with an offmovementof thehinge-pin and also bringing set or internal shoulder a and a plain rethememberFintocoincidence with theradial oe 0 surface slidably case theshoulder a would be omitted and the hole 1 formed of full uniform size.

It is not intended herein to claim, broadly, a pivoted arm, as F, andits spring devices S, f in combination with a hinge-pin,as1am aware thatsuch arm'has heretofore'been employed in a screw-threaded pin; but myinvention 20 relates to the improved combinatiorisherein after defined.

What I claim as of myinvention, and desire to secure by Letters Patent,is-

1'. In a breakdown gun, the combination,

z5 "-Wi ih the forward portion of the frame-formed with transverselyperforated hingecheeks,

, and'the barrel-hinging lug; of the non-threaded hinge-pin insertibleendwise through said frame'and lug. and having a plain bearing endfitted into the non-threaded opening in the ing devices adapted forsecuring the hinge- 'pinagainst'endwise displacement, and externailinterlocking devices adapted, when closed into interlocked position, forpreventing rot-ative movement of said hingingpin, and adapted, whendisengaged from interlock powhich can be the hinge-pin may beframe-cheek, saidhinge-pinand frame provided with internal interlocksition, to serve as a handle to facilitate the removal of saidhinge-pin, substantially as set forth.

. 2. In a breakdown gun, the hinge-pin providedwith aiixed protruberantstud or detent projecting laterally from its surface, and provided witha movable catch device in the head of said hinge-pin; in combinationwith the frame having a recess, groove or shoulder in circumferentialrelation to the pin -hole opening for-engaging said detent, and aradialrecess in the side face of the frame into which said catch devicecloses'to lock said hinge-pin non-rotative in the frame.

3. 'In a breakdown gun, the combination of the frame having itshinge-cheeks at the forward portion respectively fitted-,one with aninterior shoulder and reduced non-threaded opening, the other with atransverse hinge-pin hole thereth rough, and pro vided with a radialrecess-in the side face, and a circumferential groove at the side ofsaid hinge-pin hole adjoining the same, a hinge-pin having the eylindrical body with non-threaded reduced end, and provided with alaterally-projectingstud or detengtda pted for engaging in said groove,a swinging catch-bar pivoted'in the head of said hinge-pin adapted forengaging said radial recess, and a spring-pressed stud within thehinge-pin for retaining the catchbar at adjusted position, allsubstantially as shown and described.

Witness my hand this 28th day of December,1900. K ANDREW HANSON.

Witnesses: j

GEORGE F. BROOKS, CHAs H. BU'RLEIGH.

